Home / 972,376.40-1,458,127.20-439,623.20

Finding the Fourth Proportional to 972,376.40, 1,458,127.20 and 439,623.20

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Solution

The fourth proportional to 972,376.40, 1,458,127.20 and 439,623.20 is: 659,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,376.40 : 1,458,127.20 = 439,623.20 : x
  2. Step 2: Convert to fraction form
    972,376.40/1,458,127.20 = 439,623.20/x
  3. Step 3: Cross multiply
    972,376.40x = 1,458,127.20 × 439,623.20
  4. Step 4: Simplify right side
    972,376.40x = 641,026,545,671.04
  5. Step 5: Solve for x
    x = 641,026,545,671.04/972,376.40
  6. Step 6: Final answer
    x = 659,237.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.